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Hu Y, Zhang Y, Cui X, Wang D, Hu Y, Wang C. Structure-function relationship and biological activity of polysaccharides from mulberry leaves: A review. Int J Biol Macromol 2024; 268:131701. [PMID: 38643920 DOI: 10.1016/j.ijbiomac.2024.131701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 03/12/2024] [Accepted: 04/18/2024] [Indexed: 04/23/2024]
Abstract
Mulberry (Latin name "Morus alba L.") is a perennial deciduous tree in the family of Moraceae, widely distributed around the world. In China, mulberry is mainly distributed in the south and the Yangtze River basin. Its leaves can be harvested 3-6 times a year, which has a great resource advantage. Mulberry leaves are regarded as the homology of medicine and food traditional Chinese medicine (TCM). Polysaccharides, as its main active ingredients, have various effects, such as antioxidant, hypoglycemic, hepatoprotective, and immunomodulatory. This review summarizes the research progress in the extraction, purification, structural characterization, and structure-function relationship of polysaccharides from mulberry leaves in the last decade, hoping to provide a reference for the subsequent development and market application of polysaccharides from mulberry leaves.
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Affiliation(s)
- Yexian Hu
- College of Biology, Food & Environment, Hefei University, Hefei 230601, PR China
| | - Yan Zhang
- College of Biology, Food & Environment, Hefei University, Hefei 230601, PR China
| | - Xiaoao Cui
- College of Biology, Food & Environment, Hefei University, Hefei 230601, PR China
| | - Dongsheng Wang
- College of Biology, Food & Environment, Hefei University, Hefei 230601, PR China
| | - Yong Hu
- Agricultural Products Processing Institute, Anhui Academy of Agricultural Sciences, Hefei 230031, PR China
| | - Chuyan Wang
- College of Biology, Food & Environment, Hefei University, Hefei 230601, PR China; Key Laboratory of Berry Processing and Resource Comprehensive Utilization, Hefei University, Hefei 230601, PR China.
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Wang H, Huang G. Extraction, purification, structural modification, activities and application of polysaccharides from different parts of mulberry. Food Funct 2024; 15:3939-3958. [PMID: 38536669 DOI: 10.1039/d3fo05747j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
The mulberry plant is a member of the Moraceae family and belongs to the Morus genus. Its entire body is a treasure, with mulberries, mulberry leaves, and mulberry branches all suitable for medicinal use. The main active ingredient in mulberries is mulberry polysaccharide. Studies have shown that polysaccharides from different parts of mulberry exhibit antioxidant, antidiabetic, antibacterial, anti-inflammatory, and blood pressure-lowering properties. There are more studies on the biological activities, extraction methods, and structural characterization of polysaccharides from different parts of mulberry. However, the structural characterization of mulberry polysaccharides is mostly confined to the types and proportions of monosaccharides and the molecular weights of polysaccharides, and there are fewer systematic studies on polysaccharides from different parts of mulberry. In order to better understand the bioactive structure of mulberry polysaccharides, this article discusses the recent research progress in the extraction, separation, purification, bioactivity, structural modification, and application of polysaccharides from different parts of mulberry (mulberry leaves, mulberry fruits, and mulberry branches). It also delves into the pharmacological mechanisms of action of mulberry polysaccharides to provide a theoretical basis for further research on mulberry polysaccharides with a view to their deeper application in the fields of feed and nutraceuticals.
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Affiliation(s)
- Huilin Wang
- Key Laboratory of Carbohydrate Science and Engineering, Chongqing Key Laboratory of Inorganic Functional Materials, Chongqing Normal University, Chongqing 401331, China.
| | - Gangliang Huang
- Key Laboratory of Carbohydrate Science and Engineering, Chongqing Key Laboratory of Inorganic Functional Materials, Chongqing Normal University, Chongqing 401331, China.
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Tian Y, Wu J, Zheng Y, Li M, Xu X, Chen H, Rui W. Structural changes of polysaccharides from Astragulus after honey processing and their bioactivities on human gut microbiota. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:7241-7250. [PMID: 37358876 DOI: 10.1002/jsfa.12808] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 06/06/2023] [Accepted: 06/26/2023] [Indexed: 06/27/2023]
Abstract
BACKGROUND Astragali Radix (also known as Astragulus) is a traditional medicinal and edible homologous plant for tonifying Qi. Honey-processed Astragalus is a dosage form of Astragali Radix processed with honey, which exhibited better efficacy of tonifying Qi than the raw product. Polysaccharides are their main active components. RESULTS APS2a and HAPS2a were initially isolated from Astragulus and honey-processed Astragulus. Both of them are highly branched acidic heteropolysaccharides containing ɑ-configuration and β-configuration glycosidic bonds. The molecular weight and the molecular dimension of HAPS2a decreased and the GalA contained in APS2a was converted to Gal in HAPS2a. The α-configuration galactose residue 1,3,4-α-Galp in the backbone of APS2a was converted to the corresponding β-configuration galactose residue 1,3,4-β-Galp in the backbone of HAPS2a and the uronic acid residue T-α-GalpA in the sidechain of APS2a was converted to the corresponding neutral residue T-α-Galp in the side chain of HAPS2a. Bioactivity results showed that HAPS2a had better probiotic effects on Bacteroides ovatus, Bacteroides thetaiotaomicron, Bifidobacterium longum and Lactobacillus rhamnosus strains than APS2a. After degradation, the molecular weights of HAPS2a and APS2a decreased with the changes in their monosaccharide composition. The contents of total short-chain fatty acids (SCFAs) and other organic acids in HAPS2a group were higher than APS2a group. CONCLUSIONS Two novel high-molecular-weight polysaccharides named APS2a and HAPS2a had different probiotic activities in vitro, which might be due to their structural differences before and after honey processing. Both of them might be possibly used as an immunopotentiator in healthy foods or dietary supplement. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yufei Tian
- The Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, P. R. China
| | - Jiacai Wu
- The Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, P. R. China
| | - Yili Zheng
- The Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, P. R. China
| | - Mengyu Li
- The Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, P. R. China
| | - Xia Xu
- The Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, P. R. China
| | - Hongyuan Chen
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, P. R. China
- Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangzhou, P. R. China
- Guangdong Cosmetics Engineering and Technology Research Center, Guangzhou, P. R. China
| | - Wen Rui
- The Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, P. R. China
- Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangzhou, P. R. China
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, P. R. China
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Wen C, Li T, Wang B, Jin C, Li S, Li Y, Li M, Ding K. A pectic polysaccharide isolated from Achyranthes bidentata is metabolized by human gut Bacteroides spp. Int J Biol Macromol 2023; 248:125785. [PMID: 37451376 DOI: 10.1016/j.ijbiomac.2023.125785] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 06/10/2023] [Accepted: 07/08/2023] [Indexed: 07/18/2023]
Abstract
Achyranthes bidentata (A. bidentata) is a famous traditional Chinese medicine (TGM) for treatment osteoporosis. Polysaccharides, a major factor for shaping the gut microbiota, are the primary ingredients of A. bidentata. However, bioactivity of A. bidentata polysaccharide on human gut microbiota (HGM) remains unknown. Here, a homogeneous pectic polysaccharide A23-1 with average molecular weight of 93.085 kDa was extracted and purified from A. bidentata. And A23-1 was compsed of rhamnose, glucuronic acid, galacturonic acid, glucose, galactose and arabinose in a molar ratio of 7.26: 0.76: 5.12: 2.54: 23.51: 60.81. GC-MS, partial acid hydrolysis and NMR results indicated the backbone of A23-1 was composed of 1, 2, 4-Rhap and 1, 4-GlapA, while the branches were composed of galactose, arabinose, glucose and glucuronic acid. Further, A23-1 was found to be degraded into monosaccharides and fragments. Taking Bacteroides thetaiotaomicron (BT) as a model, we suggested three polysaccharide utilization loci (PULs) might be involved in the A23-1 degradation. Degraded products generated by BO might not support the growth of probiotics. Besides, acetate and propionate as the main end products were generated by Bacteroides spp. and probiotics utilizing A23-1. These findings suggested A23-1 was possible one of food sources of human gut Bacteroides spp.
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Affiliation(s)
- Chang Wen
- School of Pharmacy, Zunyi Medical University, 201 Dalian Road, Zunyi 563003, PR China; Glycochemistry and Glycobiology Lab, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Tingting Li
- School of Pharmacy, Zunyi Medical University, 201 Dalian Road, Zunyi 563003, PR China; Glycochemistry and Glycobiology Lab, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Binqiang Wang
- School of Pharmacy, Zunyi Medical University, 201 Dalian Road, Zunyi 563003, PR China; Glycochemistry and Glycobiology Lab, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Can Jin
- Glycochemistry and Glycobiology Lab, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Saijuan Li
- Glycochemistry and Glycobiology Lab, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Yun Li
- Glycochemistry and Glycobiology Lab, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Meixia Li
- Glycochemistry and Glycobiology Lab, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China.
| | - Kan Ding
- School of Pharmacy, Zunyi Medical University, 201 Dalian Road, Zunyi 563003, PR China; Glycochemistry and Glycobiology Lab, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China; Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China; Henan Polysaccharide Research Center, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, Henan, China.
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Yang W, Ma Y, Xu H, Zhu Z, Wu J, Xu C, Sun W, Zhao E, Wang M, Reis RL, Kundu SC, Shi X, Xiao B. Mulberry Biomass-Derived Nanomedicines Mitigate Colitis through Improved Inflamed Mucosa Accumulation and Intestinal Microenvironment Modulation. RESEARCH (WASHINGTON, D.C.) 2023; 6:0188. [PMID: 37426473 PMCID: PMC10328391 DOI: 10.34133/research.0188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 06/13/2023] [Indexed: 07/11/2023]
Abstract
The therapeutic outcomes of conventional oral medications against ulcerative colitis (UC) are restricted by inefficient drug delivery to the colitis mucosa and weak capacity to modulate the inflammatory microenvironment. Herein, a fluorinated pluronic (FP127) was synthesized and employed to functionalize the surface of mulberry leaf-derived nanoparticles (MLNs) loading with resveratrol nanocrystals (RNs). The obtained FP127@RN-MLNs possessed exosome-like morphologies, desirable particle sizes (around 171.4 nm), and negatively charged surfaces (-14.8 mV). The introduction of FP127 to RN-MLNs greatly improved their stability in the colon and promoted their mucus infiltration and mucosal penetration capacities due to the unique fluorine effect. These MLNs could efficiently be internalized by colon epithelial cells and macrophages, reconstruct disrupted epithelial barriers, alleviate oxidative stress, provoke macrophage polarization to M2 phenotype, and down-regulate inflammatory responses. Importantly, in vivo studies based on chronic and acute UC mouse models demonstrated that oral administration of chitosan/alginate hydrogel-embedding FP127@RN-MLNs achieved substantially improved therapeutic efficacies compared with nonfluorinated MLNs and a first-line UC drug (dexamethasone), as evidenced by decreased colonic and systemic inflammation, integrated colonic tight junctions, and intestinal microbiota balance. This study brings new insights into the facile construction of a natural, versatile nanoplatform for oral treatment of UC without adverse effects.
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Affiliation(s)
- Wenjing Yang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Faculty of Materials and Energy,
Southwest University, Chongqing 400715, China
| | - Ya Ma
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
| | - Haiting Xu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
| | - Zhenhua Zhu
- Department of Gastroenterology,
The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Jiaxue Wu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
| | - Cheng Xu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
| | - Wei Sun
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
| | - Min Wang
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Faculty of Materials and Energy,
Southwest University, Chongqing 400715, China
| | - Rui L. Reis
- 3Bs Research Group, I3Bs — Research Institute on Biomaterials, Biodegradables and Biomimetics,
University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco 4805-017, Guimaraes, Portugal
- ICVS/3B’s-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Subhas C. Kundu
- 3Bs Research Group, I3Bs — Research Institute on Biomaterials, Biodegradables and Biomimetics,
University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco 4805-017, Guimaraes, Portugal
- ICVS/3B’s-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Xiaoxiao Shi
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
| | - Bo Xiao
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile, and Biomass Sciences,
Southwest University, Chongqing 400715, China
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Yang Y, Wu C. The linkage of gut microbiota and the property theory of traditional Chinese medicine (TCM): Cold-natured and sweet-flavored TCMs as an example. JOURNAL OF ETHNOPHARMACOLOGY 2023; 306:116167. [PMID: 36641107 DOI: 10.1016/j.jep.2023.116167] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 01/07/2023] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The property theory of traditional Chinese medicine (TCM) is a unique medical theory based on an extensive clinical practice for thousands of years, which guides TCM doctors choosing proper medicines to treat specific diseases. The nature and flavor of TCM are a high generalization of drug's characteristics according to the property theory. Despite intensive investigations, the modern interpretation of TCM property theory still confronts several challenges, which greatly hampers the elucidation of TCM's mechanisms as well as its application. Compelling evidence has proved that gut microbiota may be a potential indicator for TCM's efficacy and mechanism. Nevertheless, at present, the relationship between the gut microbiota and the nature and flavor of TCM has not been fully elucidated. AIM OF THE STUDY To fill the gap in this field, we developed a comprehensive study to investigate the relationship between gut microbial community and TCM's property. MATERIALS AND METHODS We searched "PubMed" and "China National Knowledge Infrastructure (CNKI)" with the key word "gut microbiota", and screened the published articles related to TCM. In this review, we mainly applied cold-natured and sweet-flavored TCMs as an example to explore the modulation of cold-natured and sweet-flavored TCMs on gut microbiota, and identify the potential relationship between the alterations of gut microbiota and TCM's efficacy. RESULTS We found cold-natured and sweet-flavored TCMs possess several pharmacological activities and generally enrich beneficial bacteria like Akkermansia, Bacteroides, Lactobacillus and Bifidobacterium, which is in good accordance with their pharmacological effects. Simultaneously, these TCMs reduce the relative abundance of some harmful bacteria belonging to Firmicutes (Streptpcoccus, Enterococcus, Turicibacter, Anaerostipes and Oscillibacter) and Proteobacteria (Helicobacter, Enterobacter, Sutterella, Klebsiella, Desulfovibrio, Escherichia coli and Campylobacter jejuni). These results indicate that there are some intrinsic correlations between gut microbiota and the property of TCM, and gut microbiota may serve as a potential indicator to reflect the property of TCM. CONCLUSIONS This pilot but comprehensive review provides an interesting proposal that the ancient theory of TCM property may be interpreted by the modern biological findings in gut microbiome.
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Affiliation(s)
- Yanan Yang
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China; Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China.
| | - Chongming Wu
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China.
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Li S, Li T, Wang B, Wen C, Li M, Ding K. A structure defined pectin SA02B from Semiaquilegia adoxoides is metabolized by human gut microbes. Int J Biol Macromol 2023; 234:123673. [PMID: 36801222 DOI: 10.1016/j.ijbiomac.2023.123673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 02/03/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023]
Abstract
Polysaccharide is one of the major factors for shaping the gut microbiota. However, bioactivity of polysaccharide isolated from Semiaquilegia adoxoides on human gut microbiota remains unclear. Thus, we hypothesize gut microbes may act on it. Herein, pectin SA02B from the roots of Semiaquilegia adoxoides with molecular weight 69.26 kDa was elucidated. The backbone of SA02B was composed of alternate 1, 2-linked α-Rhap and 1, 4-linked α-GalpA, with branches of terminal (T) -, 1, 4-, 1, 3- and 1, 3, 6-linked β-Galp, T-, 1, 5- and 1, 3, 5-linked α-Araf and T-, 1, 4-linked-β-Xylp substituted at C-4 of 1, 2, 4-linked α-Rhap. Bioactivity screening showed SA02B promoted the growth of Bacteroides spp. which deconstructed it into monosaccharide. Simultaneously, we observed competition might exist between Bacteroides spp. and probiotics. Besides, we found that both Bacteroides spp. and probiotics could generate SCFAs grown on SA02B. Our findings highlight SA02B may deserve as a prebiotic to be explored to benefit the health gut microbiota.
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Affiliation(s)
- Saijuan Li
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing 210023, China; Glycochemistry and Glycobiology Lab, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China; Kweichow Maotai Hospital, Zunyi Medical University, Zhongshu Central Street, Renhuai 564500, China
| | - Tingting Li
- School of Pharmacy, Zunyi Medical University, 201 Dalian Road, Zunyi 563003, China; Glycochemistry and Glycobiology Lab, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Binqiang Wang
- School of Pharmacy, Zunyi Medical University, 201 Dalian Road, Zunyi 563003, China; Glycochemistry and Glycobiology Lab, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Chang Wen
- School of Pharmacy, Zunyi Medical University, 201 Dalian Road, Zunyi 563003, China; Glycochemistry and Glycobiology Lab, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Meixia Li
- Glycochemistry and Glycobiology Lab, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China.
| | - Kan Ding
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing 210023, China; School of Pharmacy, Zunyi Medical University, 201 Dalian Road, Zunyi 563003, China; Glycochemistry and Glycobiology Lab, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China.
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8
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Zuo Z, He Z, Ma Y, Xu C, Tao X, Ning Z, Gao L, Rehemiding A, Gao N, Zhao J. Structure characterization of a highly branched galactan from the slug Vaginulus alte and its utilization by human gut microbiota. Int J Biol Macromol 2023; 236:123935. [PMID: 36894060 DOI: 10.1016/j.ijbiomac.2023.123935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 01/15/2023] [Accepted: 03/02/2023] [Indexed: 03/09/2023]
Abstract
The slug Vaginulus alte is used as folk medicine in China, but the structure and activities of its galactan components remain to be clarified. Here, the galactan from V. alte (VAG) was purified. The Mw of VAG was determined as ~28.8 kDa. Chemical composition analysis showed that VAG was composed of d-galactose (75 %) and l-galactose (25 %). To elucidate its precise structure, a series of disaccharides and trisaccharides were purified from mild acid hydrolyzed VAG and their structures were characterized by 1D/2D NMR spectroscopy. Based on methylation analysis and structural analysis of oligosaccharides, VAG was elucidated as a highly branched polysaccharide and mainly composed of (1 → 6)- or (1 → 3)-linked β-d-galactose, and distinct (1 → 2)-linked α-l-galactose. The investigation of probiotic effects in vitro revealed that VAG could promote the growth of B. thetaiotaomicron and B. ovatus, while had no effect on the growth of L. acidophilus, L. rhamnosus, B. longum subsp. infantis and B. animalis subsp. lactis, but dVAG-3 with Mw ~1.0 kDa could promote the growth of L. acidophilus. These results will provide insights into specific structures and functions of polysaccharides from the V. alte.
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Affiliation(s)
- Zhichuang Zuo
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, 430074, China
| | - Zhicheng He
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yan Ma
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, 430074, China
| | - Chen Xu
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, 430074, China
| | - Xuelin Tao
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, 430074, China
| | - Zimo Ning
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, 430074, China
| | - Li Gao
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, 430074, China
| | - Ailainuer Rehemiding
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, 430074, China
| | - Na Gao
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, 430074, China.
| | - Jinhua Zhao
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, 430074, China.
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9
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Huang G, Lai M, Xu C, He S, Dong L, Huang F, Zhang R, Young DJ, Liu H, Su D. Novel Catabolic Pathway of Quercetin-3-O-Rutinose-7-O-α-L-Rhamnoside by Lactobacillus plantarum GDMCC 1.140: The Direct Fission of C-Ring. Front Nutr 2022; 9:849439. [PMID: 35369057 PMCID: PMC8966130 DOI: 10.3389/fnut.2022.849439] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 02/09/2022] [Indexed: 11/13/2022] Open
Abstract
Lychee pulp phenolics (LPP) is mainly catabolized in the host colon, increasing the abundances of Bacteroides and Lactobacillus. Herein, five selected gut microbial strains (Bacteroides uniformis, B. thetaiotaomicron, Lactobacillus rhamnosus, L. plantarum, and L. acidophilus) were separately incubated with LPP to ascertain the specific strains participating in phenolic metabolism and the corresponding metabolites. The results indicated that B. uniformis, L. rhamnosus, and L. plantarum were involved in LPP utilization, contributing to 52.37, 28.33, and 45.11% of LPP degradation after 48 h fermentation, respectively. Unprecedentedly, the metabolic pathway of the major phenolic compound quercetin-3-O-rutinose-7-O-α-L-rhamnoside by L. plantarum, appeared to be the direct fission of C-ring at C2–O1 and C3–C4 bonds, which was proved from the occurrence of two substances with the deprotonated molecule [M–H]− ion at m/z 299 and 459, respectively. Meanwhile, it was fully confirmed that B. uniformis participated in the catabolism of isorhamnetin glycoside and procyanidin B2. In the B. uniformis culture, kaempferol was synthesized through dehydroxylation of quercetin which could be catabolized into alphitonin by L. rhamnosus. Furthermore, LPP metabolites exerted higher antioxidant activity than their precursors and gave clues to understand the interindividual differences for phenolic metabolism by gut microbiota.
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Affiliation(s)
- Guitao Huang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, China
| | - Mingwen Lai
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, China
| | - Canhua Xu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, China
| | - Shan He
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, China
| | - Lihong Dong
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - Fei Huang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - Ruifen Zhang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - David James Young
- College of Engineering, Information Technology & Environment, Charles Darwin University, Darwin, NT, Australia
| | - Hesheng Liu
- Zhejiang Provincial Top Discipline of Biological Engineering (Level A), Zhejiang Wanli University, Ningbo, China
- *Correspondence: Hesheng Liu
| | - Dongxiao Su
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, China
- Dongxiao Su
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10
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Zhao X, Fu Z, Yao M, Cao Y, Zhu T, Mao R, Huang M, Pang Y, Meng X, Li L, Zhang B, Li Y, Zhang H. Mulberry ( Morus alba L.) leaf polysaccharide ameliorates insulin resistance- and adipose deposition-associated gut microbiota and lipid metabolites in high-fat diet-induced obese mice. Food Sci Nutr 2022; 10:617-630. [PMID: 35154697 PMCID: PMC8825736 DOI: 10.1002/fsn3.2689] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/18/2021] [Accepted: 11/21/2021] [Indexed: 11/21/2022] Open
Abstract
Dietary supplements are currently being used to ameliorate metabolic alterations via maintaining gut microflora balance. Mulberry leaf is known as medicine homologous food for its glucose- and lipid-modulating properties. However, the effects of mulberry leaf polysaccharide (MP) on metabolic dysbiosis and gut microbiota are still poorly understood. After extraction and characterization, the beneficial effects of water-soluble MP were evaluated in high-fat diet-induced obese mice. MP treatment could reduce adipose tissue, improve insulin resistance, and alleviate the pathological lesions in colon. Investigation of the underlying mechanism showed that MP modulated gut microbial community by 16S rRNA analysis and reversed the elevation of lipid indexes by plasma lipidomics analysis. Correlation analysis indicated that the abundance of seven key bacterial species and six lipids were closely associated with the metabolic traits, respectively. Overall, MP could ameliorate metabolic disorders, and modify the gut microbiota and lipids. This would greatly facilitate the utilization of MP as a functional food.
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Affiliation(s)
- Xin Zhao
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Zhifei Fu
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Minghe Yao
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Yu Cao
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Tongtong Zhu
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Rui Mao
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Ming Huang
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Yafen Pang
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Xianghui Meng
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Lin Li
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Boli Zhang
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Yuhong Li
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Han Zhang
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
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11
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Perri MR, Romano C, Marrelli M, Zicarelli L, Toma CC, Basta D, Conforti F, Statti G. Beneficial Role of Fruits, Their Juices, and Freeze-Dried Powders on Inflammatory Bowel Disease and Related Dysbiosis. PLANTS (BASEL, SWITZERLAND) 2021; 11:plants11010004. [PMID: 35009009 PMCID: PMC8747592 DOI: 10.3390/plants11010004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/15/2021] [Accepted: 12/17/2021] [Indexed: 05/27/2023]
Abstract
Inflammatory bowel disease (IBD) is a group of complex chronic inflammatory conditions affecting the gastrointestinal tract. It is linked to a number of genetic and environmental factors able to perturb the immune-microbiome axis. Diet is the most investigated variable both for its role in the etiology of IBD and for its beneficial potential in the treatment of the symptoms. Dietary products may influence intestinal inflammation through different mechanisms of action, such as the modulation of inflammatory mediators, the alteration of gene expression, changes in gut permeability, and modifications in enteric flora composition. A consisting number of studies deal with the link between nutrition and microbial community, and particular attention is paid to plant-based foods. The effects of the dietary intake of different fruits have been investigated so far. This review aims to present the most recent studies concerning the beneficial potential of fruit consumption on human gut microbiota. Investigated plant species are described, and obtained results are presented and discussed in order to provide an overview of both in vitro and in vivo effects of fruits, their juices, and freeze-dried powders.
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Affiliation(s)
- Maria Rosaria Perri
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy; (M.R.P.); (F.C.)
| | - Carmen Romano
- SIACSA Società Italiana degli Analisti del Comportamento in campo Sperimentale ed Applicativo, 87100 Cosenza, RC, Italy;
| | - Mariangela Marrelli
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy; (M.R.P.); (F.C.)
| | | | - Claudia-Crina Toma
- Pharmacognosy Department, Faculty of Pharmacy, Vasile Goldis Western University of Arad, 87 L. Rebreanu Str., 310045 Arad, Romania;
| | - Daniele Basta
- University Sport Center, University of Calabria, 87036 Rende, CS, Italy;
| | - Filomena Conforti
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy; (M.R.P.); (F.C.)
| | - Giancarlo Statti
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy; (M.R.P.); (F.C.)
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12
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Li X, Gao X, Zhang H, Liu Y, Sarker MMR, Wu Y, Chen X, Zhao C. The anti-hyperuricemic effects of green alga Enteromorpha prolifera polysaccharide via regulation of the uric acid transporters in vivo. Food Chem Toxicol 2021; 158:112630. [PMID: 34687833 DOI: 10.1016/j.fct.2021.112630] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 10/15/2021] [Accepted: 10/17/2021] [Indexed: 11/15/2022]
Abstract
A novel polysaccharide obtained from Enteromorpha prolifera (EPP) was purified through diethylaminoethyl cellulose-52 and Sephadex G-75 chromatography. Fourier transform infrared spectroscopy, high-performance liquid chromatography, and nuclear magnetic resonance (NMR) spectroscopy were employed to analyse the structure of EPP. It mainly comprised rhamnose, glucuronic acid, galactose, arabinose, and xylose at a molar ratio of 20.45:12.74:10.99:5.84:1.95, and its average molecular weight was 46.56 kDa. The seven major glycosidic residues identified by NMR were as follows: →2)-α-L-Araf-(1→, →2)-α-L-Rhap-(1→, →4)-α-L-Rhap-(1→, →2,6)-β-D-Galp-(1→, →4)-β-D-GlcpA-(1→, →3,4)-β-D-GlcpA-(1→, and →4)-β-Xylp-(1→. The effect of EPP on hyperuricemic mice was determined by analysing correlative general physical parameters, renal histopathology, renal gene expressions, and gut microbiome. EPP significantly reduced serum uric acid (UA), serum blood urea nitrogen, serum xanthine oxidase (XOD), and hepatic XOD as well as improved histological parameters in hyperuricemic mice. Furthermore, mRNA and protein expression analyses showed the upregulation of UA excretion genes such as ABCG2, OAT1, and NPT1 and downregulation of UA resorption gene URAT1. Moreover, EPP maintained the stability of the intestinal flora and confirmed that Parasutterella is closely related to the regulation of hyperuricemia. This study is the first to demonstrate the anti-hyperuricemic activity of EPP and highlight its therapeutic potential for hyperuricemia-related diseases.
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Affiliation(s)
- Xiaoqing Li
- Institute of Oceanography, Minjiang University, Fuzhou, 350108, China; College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xiaoxiang Gao
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Hui Zhang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yuanyuan Liu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Md Moklesur Rahman Sarker
- Department of Pharmacy, State University of Bangladesh, 77 Satmasjid Road, Dhanmondi, Dhaka, 1205, Bangladesh; Pharmacology and Toxicology Research Division, Health Med Science Research Limited, 3/1 Lalmatia, 1207, Dhaka, Bangladesh
| | - Yijing Wu
- Institute of Oceanography, Minjiang University, Fuzhou, 350108, China.
| | - Xinhua Chen
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Chao Zhao
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, 350002, China; Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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13
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Zhou Y, Shi X, Fu W, Xiang F, He X, Yang B, Wang X, Ma WL. Gut Microbiota Dysbiosis Correlates with Abnormal Immune Response in Moderate COVID-19 Patients with Fever. J Inflamm Res 2021; 14:2619-2631. [PMID: 34168484 PMCID: PMC8217908 DOI: 10.2147/jir.s311518] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/27/2021] [Indexed: 02/06/2023] Open
Abstract
Background Most COVID-19 patients are moderate, and fever is the most common clinical manifestation and associated with poorer prognosis. Gut microbiota may also play important roles in COVID-19 pathogenesis. However, the association between gut microbiota and fever in individuals with moderate COVID-19 remains unclear. Methods We compared the clinical features and laboratory results of 187 moderate COVID-19 patients with fever and without fever and identified several inflammatory markers in patients with fever. Then, we performed gut metagenome-wide association study for 31 individuals to identify the microbes and their epitopes which have potential role in fever and hyperinflammation. Results Among 187 moderate COVID-19 patients, 127 (67.9%) patients presented with fever. Lymphocytes, CD3+ T cells, CD4+ T cells and the ratio of CD4+ T cells to CD8+ T cells were significantly reduced, while AST, LDH, CRP, IL-6 and IL-10 were significantly elevated in patients with fever. Gut microbiome composition was significantly altered in patients with fever compared with those with non-fever. Opportunistic pathogens such as Enterococcus faecalis and Saccharomyces cerevisiae were enriched in patients with fever. E. faecalis was positively correlated with LDH and D-dimer and negatively correlated with CD8+T cells and IL-4, while S. cerevisiae was positively correlated with diarrhea symptom. Furthermore, several species with anti-inflammatory and protective effects, such as Bacteroides fragilis and Eubacterium ramulus, were enriched in patients with non-fever. B. fragilis was positively correlated with lymphocytes, and E. ramulus was negatively correlated with LDH, AST and IL-6. Finally, we found that several bacterial epitopes of GroEL, a homolog of human HSP60, were enriched in patients with fever and positively correlated with IL-6, IL-10, WBC, neutrophils, D-dimer, LDH, CRP, and E. faecalis. Conclusion Gut microbiota dysbiosis correlates with abnormal immune response in moderate COVID-19 patients with fever.
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Affiliation(s)
- Yaya Zhou
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China
| | - Xing Shi
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing, 100044, People's Republic of China.,Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, First Affiliated Hospital of Southern University of Science and Technology, Shenzhen People's Hospital, Shenzhen, 518020, People's Republic of China
| | - Wei Fu
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China
| | - Fei Xiang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China
| | - Xinliang He
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China
| | - Bohan Yang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China
| | - Xiaorong Wang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China
| | - Wan-Li Ma
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China
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14
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Ai J, Bao B, Battino M, Giampieri F, Chen C, You L, Cespedes-Acuña CL, Ognyanov M, Tian L, Bai W. Recent advances on bioactive polysaccharides from mulberry. Food Funct 2021; 12:5219-5235. [PMID: 34019048 DOI: 10.1039/d1fo00682g] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mulberry (Moraceae family), commonly considered as a folk remedy, has a long history of usage in many regions of the world. Polysaccharides regarded as one of the major components in mulberry plants, and they possess antioxidant, antidiabetic, hepatoprotective, prebiotic, immunomodulatory and antitumor properties, among others. In recent decades, mulberry polysaccharides have been widely studied for their multiple health benefits and potential economic value. However, there are few reviews providing updated information on polysaccharides from mulberry. In this review, recent advances in the study of isolation, purification, structural characterization, biological activity and the structure-activity relationship of mulberry polysaccharides are summarized and discussed. Furthermore, a thorough analysis of the current trends and perspectives on mulberry polysaccharides is also proposed. Hopefully, these findings can provide a useful reference value for the development and application of natural polysaccharides in the field of functional food and medicine in the future.
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Affiliation(s)
- Jian Ai
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, P. R. China.
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